Do I Know This Already? Quiz

   

"Do I Know This Already?" Quiz

The purpose of the "Do I Know This Already?" quiz is to help you decide what parts of this chapter to use. If you already intend to read the entire chapter, you do not necessarily need to answer these questions now.

The 12-question quiz, derived from the major sections in the "Foundation Topics" portion of the chapter, helps you to determine how to spend your limited study time.

Table 11-1 outlines the major topics discussed in this chapter and the "Do I Know This Already?" quiz questions that correspond to those topics.

Table 11-1. "Do I Know This Already?" Foundation Topics Section-to-Question Mapping

Foundation Topics Section

Questions Covered in This Section

Integrated IS-IS Operation

110

Integrated IS-IS Design Considerations

1112

NOTE

The goal of self-assessment is to gauge your mastery of the topics in this chapter. If you do not know the answer to a question or are only partially sure of the answer, you should mark this question wrong for purposes of the self-assessment. Giving yourself credit for an answer you correctly guess skews your self-assessment results and might provide you with a false sense of security.


1:

What triggers an LSP update to be flooded to neighbors?

  1. When an adjacency goes up or down

  2. When there is a change in the state of the interface

  3. When there is a change in the routing table

  4. When an LSP is received

2:

If an LSP that already exists in the database is received, the received LSP is ignored on what condition?

  1. It is a valid packet that is older than the one in the database.

  2. It is a valid packet with the same sequence number as the one in the database.

  3. It is not a valid packet because it is corrupted.

  4. It is a valid packet that is newer than the one in the database.

3:

A point-to-point link uses which of the following packets to create and maintain neighbor tables in addition to the link-state databases?

  1. PSNP

  2. Hellos

  3. CSNP

  4. LSP

4:

What is the PATH table used for?

  1. Each candidate route is placed in the PATH database while the metric is examined to determine if it is the shortest path to the destination.

  2. The forwarding database examines the PATH table to ascertain the details of the chosen path.

  3. Private Allocation Tree Hidden (PATH table) lists the RFC 1918 addresses to prevent them leaking into the Internet.

  4. It holds the LSP immediately prior to flooding.

5:

There are many criteria used in selecting routes. These criteria are used in a certain order to ensure that the best decision has been made. Which of the following criteria is used first in the selection process?

  1. Longest match, that is, the route with the most specific subnet mask

  2. Level 1 routes

  3. Internal routes (within the autonomous system)

  4. Routes with ToS defined

6:

What is the default cost applied to the outgoing interface of a Cisco router configured to run IS-IS?

  1. 15

  2. 10

  3. Inverse of bandwidth

  4. There is no default. It must be configured.

7:

At what point is the forwarding database created?

  1. After all the LSPs are received

  2. As soon as the LSP is received

  3. After the SPT is built

  4. Once the neighbor table is built

8:

When the router receives user data and error reports , to which process are they sent?

  1. The decision process

  2. The forwarding process

  3. The receive process

  4. The update process

9:

When the router receives hellos or routing information (in the form of SNPs and LSPs) to which process are they sent?

  1. The decision process

  2. The forwarding process

  3. The receive process

  4. The update process

10:

Which of the following are IS-IS rules for summarization?

  1. All Level 1 routers can summarize routes.

  2. All Level 2 routers can summarize at the area boundary.

  3. If a Level 1-2 router is summarizing routes sent to a Level 2 router, all Level 1-2 routers must summarize in the same way.

  4. All the above.

11:

What is the advantage of designing a totally flat network running Level 1-2 routing on every router?

  1. This design allows for easy migration to multiple areas.

  2. This design allows for easy system administration.

  3. This design requires fewer resources of either the network or the router.

  4. Summarization can be configured within the area.

12:

What could result if the Level 1-2 router fails?

  1. Another router would be elected as the Level 1-2 router.

  2. The autonomous system would not be able to communicate with the outside world.

  3. The area would be completely annexed from the rest of the network.

  4. No summary routes would be sent into the backbone area.


The answers to this quiz are found in Appendix A, "Answers to Chapter 'Do I Know This Already?' Quizzes and Q&A Sections." The suggested choices for your next step are as follows :

  • 6 or less overall score Read the entire chapter. This includes the "Foundation Topics" and "Foundation Summary" sections, and the "Q&A" section at the end of the chapter.

  • 79 overall score Begin with the "Foundation Summary" section, and then go to the "Q&A" section at the end of the chapter. If you have trouble with these questions, read the appropriate sections in "Foundation Topics."

  • 10 or more overall score If you want more review on these topics, skip to the "Foundation Summary" section, and then go to the "Q&A" section at the end of the chapter. Otherwise, move to the next chapter.



CCNP BSCI Exam Certification Guide
CCNP BSCI Exam Certification Guide (CCNP Self-Study, 642-801) (3rd Edition)
ISBN: 1587200856
EAN: 2147483647
Year: 2002
Pages: 194
Authors: Clare Gough

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